A - Human Necessities – 01 – B
Patent
A - Human Necessities
01
B
A01B 63/32 (2006.01) A01B 63/10 (2006.01) F15B 15/14 (2006.01)
Patent
CA 2591723
A hydraulic control system for use with a farm implement is configured to move an implement frame between a first height corresponding to a planting position, a second height corresponding to a field transport position, a third height corresponding to a lock up position and a fourth height corresponding to a road transport position. At least one hydraulic cylinder is mounted to a rock shaft connected to the implement frame to move the implement frame between the first height, the second, the third height and the fourth height. At least one depth stop valve is in communication with the hydraulic cylinder. The depth stop valve includes a bypass configured to allow controlled movement of the hydraulic cylinder between the second position and the third positions.
Friggstad Terrance A.
Mayerle Dean J.
Cnh Canada Ltd.
Gowling Lafleur Henderson Llp
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